A little momey and time saver...

The discing will do the same as the chemical application. Yes, Roundup will translocate into the root rizomes better...but for the time and money, the discing will do a good job of knocking back the weeds as well. Plus you need to do that step for site prep anyway.

If you really want to set your weeds back, wait another 4 to 6 weeks for another "green up" and then disc again to knock those weeds back and plan immediately after. This is a technique used by farmers prior to chemicals as well as organic farmers today.

Save your chemical application if you want to spray some volunteer grasses later like foxtail, quack grass, etc. Clipping is also an easy option for this task as you might need to clip your clovers back at that time anyway.

This recommendation is based on the fact that you have a nice clean soybean field already. I would provide the same recommendation if it were any other crop field. If it were old CRP, meadow or cleared woods, then I would recommend a year or two of Roundup Ready Corn or Soybeans to get your plot under control first.

Save your money...get good results...and have fun!

Land DR
www.HabitatNOW.com